//package com.fly.crmanagement.util;
//
//import com.google.zxing.LuminanceSource;
//
//import java.awt.*;
//import java.awt.geom.AffineTransform;
//import java.awt.image.BufferedImage;
//
//
//public class BufferedImageLuminanceSource extends LuminanceSource {
//
//    private final BufferedImage image;
//    private final int left;
//    private final int top;
//
//    public BufferedImageLuminanceSource(BufferedImage image) {
//        this(image, 0, 0, image.getWidth(), image.getHeight());
//    }
//
//    public BufferedImageLuminanceSource(BufferedImage image, int left, int top, int width, int height) {
//        super(width, height);
//
//        int sourceWidth = image.getWidth();
//        int sourceHeight = image.getHeight();
//        if (left + width > sourceWidth || top + height > sourceHeight) {
//            throw new IllegalArgumentException("Crop rectangle does not fit within image data.");
//        }
//
//        for (int y = top; y < top + height; y++) {
//            for (int x = left; x < left + width; x++) {
//                if ((image.getRGB(x, y) & 0xFF000000) == 0) {
//                    image.setRGB(x, y, 0xFFFFFFFF); // = white
//                }
//            }
//        }
//
//        this.image = new BufferedImage(sourceWidth, sourceHeight, BufferedImage.TYPE_BYTE_GRAY);
//        this.image.getGraphics().drawImage(image, 0, 0, null);
//        this.left = left;
//        this.top = top;
//    }
//
//    public byte[] getRow(int y, byte[] row) {
//        if (y < 0 || y >= getHeight()) {
//            throw new IllegalArgumentException("Requested row is outside the image: " + y);
//        }
//        int width = getWidth();
//        if (row == null || row.length < width) {
//            row = new byte[width];
//        }
//        image.getRaster().getDataElements(left, top + y, width, 1, row);
//        return row;
//    }
//
//    public byte[] getMatrix() {
//        int width = getWidth();
//        int height = getHeight();
//        int area = width * height;
//        byte[] matrix = new byte[area];
//        image.getRaster().getDataElements(left, top, width, height, matrix);
//        return matrix;
//    }
//
//    public boolean isCropSupported() {
//        return true;
//    }
//
//    public LuminanceSource crop(int left, int top, int width, int height) {
//        return new BufferedImageLuminanceSource(image, this.left + left, this.top + top, width, height);
//    }
//
//    public boolean isRotateSupported() {
//        return true;
//    }
//
//    public LuminanceSource rotateCounterClockwise() {
//        int sourceWidth = image.getWidth();
//        int sourceHeight = image.getHeight();
//        AffineTransform transform = new AffineTransform(0.0, -1.0, 1.0, 0.0, 0.0, sourceWidth);
//        BufferedImage rotatedImage = new BufferedImage(sourceHeight, sourceWidth, BufferedImage.TYPE_BYTE_GRAY);
//        Graphics2D g = rotatedImage.createGraphics();
//        g.drawImage(image, transform, null);
//        g.dispose();
//        int width = getWidth();
//        return new BufferedImageLuminanceSource(rotatedImage, top, sourceWidth - (left + width), getHeight(), width);
//    }
//
//}
